u/Lazy_Cicada_4702

I’m trying to model foundation soil using an undrained strengh ratio (shansep) and then have a traffic load on top of my embankment.

I wanted to use a B-bar function to model the increased pore pressure from the surcharge load but this does not seem to be possible. Am I missing something?

In my head the added surcharge load should affect the pore pressures and decrease the strength mobilized in the material?